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What precautions does Stack Overflow take to stop the cheaters?

I have almost 1500 points on Stack Overflow. It took me some time in answering questions, I anyway considered it worth the effort since everytime I asked a question I always got very valueable answers on Stack Overflow.

Now, what if user X simply cheats the system by creating a false user Y and using this last one to upvote almost all his/her own (user X) questions/answers?!

This would create a huge cheat on Stack Overflow reputation criteria, by creating a huge increase in user X's reputation.

Is there anything in Stack Overflow to prevent such a simple cheating scheme?

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marked as duplicate by juanformoso, waiwai933, BinaryMisfit Sep 7 '10 at 21:09

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

3 questions (at least) on this topic today, what's up? – juanformoso Sep 7 '10 at 20:00
Did somebody write a blog post on this recently or something? It's all the rage today. – Bill the Lizard Sep 7 '10 at 20:01
@Juan Manuel: it's something to add on SO FAQ. – Marco Demaio Sep 7 '10 at 20:23
up vote 2 down vote accepted


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Thanks, glad to know it. I think SO should make it clear in the FAQ. I'm surprised to read they use forgiveness on these type of cheating scheme. Users cheating in these ways should get a total reputation reset in the best case or being evicted from SO. – Marco Demaio Sep 7 '10 at 20:07
@Marco - But what's to stop me creating a sock puppet and voting all your questions and answers up? It would then hardly be fair to reset your reputation or evict you. – Martin Smith Sep 7 '10 at 23:01

yes yes yes and yes.

This has been asked a lot; but here it is....

How does the SO voter fraud detection mechanism work?

Oh look what is that up there.... yes... it's a search box... alt text

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I was expecting the downvote - I thought it was maybe a bit too sarcastic. If I'm honest I've only just found out about this… and wanted to do more pictures. – codingbadger Sep 7 '10 at 20:05
I did not downvote you. If you try asking an answer with the same title of mine one you won't see any reference to RELATED QUESTIONS. – Marco Demaio Sep 7 '10 at 20:09
@Marco - It wasn't directed at you. Just saying I was expecting it due to my sarcastic answer. Maybe not the same title but there are plenty of questions that relate to votes/cheating/fraud/ etc. anyway, I'm sure you have your answer now though. :) – codingbadger Sep 7 '10 at 20:14
I saw related quetsions on cheating, but not on the cheating scheme. – Marco Demaio Sep 7 '10 at 20:24

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